Great idea... for hitters. I do believe that baseball has turned its focus to hitting, in an effort to attract more fans with a more exciting (read high scoring) game.

However, as a pureist, I believe pitching and fielding are at the core of the game, and should be more in focus than hitting. The old addage still holds true... Hitting wins games, but Pitching wins championships.

I think a product like this has been on the market for a while, check online, but I've seen this before somewhere. There have been other bats like this, with weights on the inside. They are all banned from the major leagues however.

i wondered if a three-sided wood bat would be liked by the playersone face could have angled ridges (30 degrees)the other could have angled ridges (-30 degrees)i don't know much about baseball butwould this help the batsman aim the ball the way he wanted and confuse the fielders a bit?

I had a bat like this when I was twelve years old. It was a red aluminum bat called Tidal Wave. I didn't really notice a difference in power with the liquid inside. I think a solid piece of metal has more pop to it.

Aluminum bats are not legal within pro baseball. They are only allowed to use wood bats.

The primary reason is the increased velocity of the balls coming from these bats does not allow infielders and runners adequate reaction time for their safety. Particularly, for pitchers.

This may be possible for college level or below, but then the reaction time of the fielders at their level may not be adequate.

Yes, a bat like this was around (Aqua Wave??). The concept sounded good and you certainly could feel the weight shift. The problem was that it actually absorbed most of the impact instead of transferring the energy onto the ball. The bat sounded dead and balls would not come off the bat fast at all. We never had to worry about our reaction time when someone picked up the water bat.

In US pro baseball they may have this already, although the liquid is steriods...

The water would not be entirely practical.

A bat designed to spring with the ball and thus transfer greater energy might do it. I recall reading about an aluminum bat with rubber layered into it which was banned in softball leagues.

Just to warn you, mercury is hideously poisonous. Stick with water.

I'm not sure that any liquid would provide an effective gain in leverage over the energy lost due to harmonic dampening. A liquid bat would need to have its physics accounted for, i.e. generating an ideal resonance regardless of the location of the liequid. A metal piston would probably be more robust (and easier to handle than liquid). Given an airtight seal, the air in the chamber can be used as a brake for the piston to avoid internal contact.